Orthodontic appliance



July 27 1926.

I E. H. ANGLE ORTHODONTIC APPLIANCE 2 Sheets-Sheet 1 'original Filed Feb. 19, 1925 avwenlfo'u I Ava/drab. Hug/e,

July 27,1926. 1,594,144

E. HQANGLE onTn'onom'xc APPLIANCE Original Filed Feb. 19, 1925 2 Sheets-Sheet 2 u! flu I avwentoz llu l l i llllmfi mu lHward i W I atfozmn V liatent ed July 27,-

' EpwA n'H,:-nNGLE;,O BAQDE QQeanltlnoainaif Y, l; i

ruery I 119, 1925,, -S er I Original application filed Feb My, invention is applicable 'to the art or correcting the position 'of'malp'osejd teeth of I the dental arch, and particularlyrelates to that class of devices in 'Which an arch-bai is 5 I adjnstably supported at. its opposite termif nals by anchorages clamped to silit'ably dis posed posterior teethor molars, and is; BS191 cially directed to the means by which said 10 ends, Withselected'teeth ofthe'dental arch. The principal obj'ectsof my invention are to provide a tooth engaging; hand with an arch-bar attaching bracket of suchpropon tions and'of such reducedbulk, orsize, as

to aftord a minimum. interference with the .lips. and cheeks, 'vvhereby aconsequ'ent lessenthe' rear surfacect thebody etsaid bracket,

draw "thefl oop tar 1t about the "arelrbar and fthereby firmly lock it in Tits sle-t said arch-bar is cennectedjintermediate ef'its various'novel'featiires of censtruction and I ing "of discomfort and inconvenience te'j the,

I wearer is efiected. V Other objects Of my invention are to pro: videthetooth-band with a bracket thatis so constructed and arranged as tojafiorfd such a reinforcement for said band as to require no supplemental stiffening or thickening of p y I U My invention .co'mprehendsfan;arch-bar, attaching bracket, the construction of which is ideally adapted to be' conveniently sol- 'ends ei ajloopedli'gature, forming a retaining lock, may be'passedf ands'o twisted as to ra ke -I 1' invention also ,inchides- I all 1 the arrangement as: hereinafter mere definitely specified.v v V In the acccmp'anying drawings, Figure l is inverted planjview of the 'upperhuman dental arch, showing; a CQIlVIl lQIEfi-i; .embodiment of my inventien attached to selected teeth ofsaid 'd ental arch; Fig; 2 is an en 'larged; plan view of one of the teeth attachrrie'nts 'ccmprisi'ng a. tooth-band extended 5 in a plane and an arch-bar attach-ingbracket, constructed according to myinventio'n, attached thereto; Fig; 3 is a front elevatio-n al" View of the tooth attachment shown v in Fig.

i the 'toothband as has been commqnly emdered to the tooth-band, a'nd'to 'afiord such 39 atenacmus attachment therewith, that any possible movement of the ,t-oEzth, to which the bandmay be fitted, may-befefl ected Without danger of i distortion or fracture of the appliance-1 f l Further objects of my invention are to provide a tooth-band With a bracket having meanscooperative to so firmly lock an'arch-' bartherein as toinsure the firm,accurjate andvpositiv e movements of, either the rown orfrootiof a toothin any desired directign, and thereby so facilitate :the cooperative action-cf the arch-bar that it may as readily efl'ect the movement 'of lteethf lin uaily, labially and bliccally, Or they mayfli e ro 7 tated or tipped transversely with r e SpQQtto' their axes, and may-befas readily forced laterally in the direction of {the length of the arch-bar fvvith equal accuraey. ofmg I v v v p I bntshovving theflfreeends'of the lojoped vvire I fragment 50f. the" arch-bar operativelyv en- 2;rig.,,4 is a transverse section-a1 vievvof aid tooth attachment, taken en the line in Figs; 2; and 3 Fig: 5 is a greatlyerr-j larged perspective view of'thebraoket per 'se asse'en' frcm the frentthere ofyFig. 6 is a siniilar perspective view er the rear of 1 saidbracket Fig; T'Kis an enlarged frag; mentary perspective view; of the formed tooth-band v'vith its" "arch-b ari attaching bracket seciiredthereto; Fig. 8 is a' perspective view similar to FigLTY, but *shevving' a gaged in thexattaehing bracket; Fig. '9 is a re p c f ing the ire ligature forming the lock dever'ithe arch-bar, anditsends' passed loope othr ou' hthe slots rifiormind the uidin ape'r tunes the attaching bracket and extended therefrom in alinementwith said apertures and in position to" effect the the loop taut; Fig. 1-0 is a perspective view'slmilar to Fig.9, but showin 'thefree ends'ef ivdvieW similar to Fig.2 8 but show- I td fcjrm ilecp retaining bends therein; Fig. I I ll 'is ;a perspeetive 'vievv similar to Fig; 10,

o spectfite the bracket; 152 is a perspective View similar tof'Fig. '1'1', "bet shO'Wing the" tvvisted endsef the vviire clippedoif',

v the looped ire"ligature drawn backwardly leaving the laterally bent projecting ends of the wire ligature to hold the loop under ten sion; Fig. 13 is a perspectiveview of the arch-bar. 1 bent to substantially conform to the dental arch and having its extremities provided with tangs 2 and extended through anchor sheaths 3, with which said tangs may be engaged to retain the arch-bar 1 1n adjusted position, and which arecarried by the anchor-bands 5, of well known construction.

As shown in Fig. 1, the anchor bands 5 are attached to the first molar teeth 6, which serve as anchor abutments upon opposite justed therein by iposed teeth 10 in the dental arch, and com-- sides of the dental arch, said bands being provided with an eye 7 at one end, and at the other end, a threaded stem 8 extended through said eye and arranged to be adthe nut 9 to clamp the band 5 upon said abutment teeth 6, as is obvious. r

The gist of my invention resides in the means of securing the arch-bar 1 to the malprises the tooth-band 11 and its arch-bar attaching bracket 13, shown in Figs. 2 and 3 in its initial form extended in a plane, and arranged to be cut to the length desired as indicated by the transverse dot-and-dash lines or the oblique-dash lines thereon shown, and formed into the tooth embracing ring as shown by the circular dot-and-dash lines as indicated in Fig. 2.

As best shown in Figs. A and 5, the bracket 13 may be formed of a substantially rectangularpiece of metal having its rear wall 1 1 affording a plane surface substantially coextensive with the extreme dimensions of said bracket,which not only affords a tenacious solder joint with the tooth-band .11,

but also provides such a reinforcement for said tooth-band as to eliminate the necessity-of any auxiliary reinforcement as heretofore employed.

The front or outer wall 15 of the bracket provided with the deeply cut or de presse slot 16 extending transversely through the body of said bracket and in par- 1 allel relation to the length of said tootln band, and so nearly bisecting the bracket body as to afford but a relatively thin web 17, sufficient only to insure the required rigidity, yet permitting the arch-bar to so closely approach the tooth-band as to conserve space and thereby minimize the extent 22 shaped, as shown in'Fig. 13, into the form of a staple or hairpin having its legs 23 extended parallel from its loop 25.

- As shown in the several figures, the slot- 16, in the bracket 13, opens outwardly from the tooth-band and consequently affords convenient access thereto for the easy manipulation of the arch-bar with respect thereto, 11'- respective of the shape and position of said arch-bar which is shown engagedinthe slot in Fig. 8. v

As shown in'Fig. 9, the arch-bar thus adjusted is engaged by the loop 25 of the lock structure shown in Fig. 13, the legs 23 being threaded through the eyes or apertures formed by the slots 19, and pulled in the direction of their free extremities to draw the loop 25 taut over the arch-bar as indicated. I y c As shown in Fig. 10, the legs 23 of the lock structure are turned backwardly to form the loop retaining bends 26, and in this position the parallel strands of the wire ligature are twisted together to form inelfect a' tourniquet 27 as shown in Fig. 11, and thereby further tighten the loop 25 and the retaining bends 26.

As shown in Fig. 12, the twisted strand 27 is clipped flush with the outer face 15 of the bracket 13, thereby leaving the outwardly extending retaining prongs 29, of the archbar more clearly illustrated separately in Fig. 1 1.

'My'invention is advantageous in that the bracket serves as a reinforcement affording a maximum solder attaching surface, and provides a uniform three-surface engagement with the arch-bar, which snugly fits therein, and which may be readily shaped and adjusted to engage therewith from the outer side thereof. x

Furthermore, the bracket attachment affords such a positive locking means comprising the ligature wire lock, that'said archbar may be so rigidly engaged with the bracket as to insure an ideal torque power in any desired direction, whereby the move ment of the tooth roots either labiallyior lingually, and the tipping mesially or distally of thecrowns and roots, as well as the rotation of the tooth, may be effected with equal facility; In fact, every'possible de sired'movement of the teeth bereadily V accomplished thereby.

I do not desire to limit my invention to the precise details of construction and arrangement as herein specified, as it is obvious that various modifications-may be made therein withoutvdeparting from the essen-e tial features of my invention as defined in the appended claims. r

' allel with the slot in the outer face and disdescribed my invention, 1

posed, upon opposite sides thereof.

2. An orthodontic appllance comprising a V: bracket arranged to be attached to a toothband, and having a slot in its outer face arranged to receive an arch-bar, and slots in 7 its inner face having their open sides closed by said tooth-band to afford apertures parallel with said arch-bar receiving slot, through which ligatures may extend to providev means for securing said arch-bar in the slot I provided therefor infsaid bracket."

3. An orthodontic appliance comprising a bracket arranged tobe attached'to a toothband, and having a slot in its outer face arranged toreceivean arch-bar, and slots in its "inner face having their open sides closed by? said tOoth-band-toaiford apertures spaced l upon opposite sides of, "and parallel with said arch-barreceiving slot, through which 'ligatures may extend to provide means for securing .said arch-bar in the slot provided therefor in said bracket.

In witness whereof, 'I, have hereunto set I my handthis 4th day of August, A. D., 1925. 1 V EDWARD H. ANGLE; 

